diff --git a/mtk/mtk/mtk-rectangle.c b/mtk/mtk/mtk-rectangle.c
index 83330b3e0..76cdedca3 100644
--- a/mtk/mtk/mtk-rectangle.c
+++ b/mtk/mtk/mtk-rectangle.c
@@ -367,4 +367,17 @@ mtk_rectangle_crop_and_scale (const MtkRectangle    *rect,
   graphene_rect_offset (&tmp, src_rect->origin.x, src_rect->origin.y);
 
   mtk_rectangle_from_graphene_rect (&tmp, MTK_ROUNDING_STRATEGY_GROW, dest);
-}
\ No newline at end of file
+}
+
+void
+mtk_rectangle_scale_double (const MtkRectangle  *rect,
+                            double               scale,
+                            MtkRoundingStrategy  rounding_strategy,
+                            MtkRectangle        *dest)
+{
+  graphene_rect_t tmp = GRAPHENE_RECT_INIT (rect->x, rect->y,
+                                            rect->width, rect->height);
+
+  graphene_rect_scale (&tmp, scale, scale, &tmp);
+  mtk_rectangle_from_graphene_rect (&tmp, rounding_strategy, dest);
+}
diff --git a/mtk/mtk/mtk-rectangle.h b/mtk/mtk/mtk-rectangle.h
index e63a51436..91a8757bf 100644
--- a/mtk/mtk/mtk-rectangle.h
+++ b/mtk/mtk/mtk-rectangle.h
@@ -130,3 +130,9 @@ void mtk_rectangle_crop_and_scale (const MtkRectangle    *rect,
                                    int                    dst_width,
                                    int                    dst_height,
                                    MtkRectangle          *dest);
+
+MTK_EXPORT
+void mtk_rectangle_scale_double (const MtkRectangle  *rect,
+                                 double               scale,
+                                 MtkRoundingStrategy  rounding_strategy,
+                                 MtkRectangle        *dest);
diff --git a/src/compositor/meta-shaped-texture.c b/src/compositor/meta-shaped-texture.c
index 2eb98a7fe..31417305e 100644
--- a/src/compositor/meta-shaped-texture.c
+++ b/src/compositor/meta-shaped-texture.c
@@ -1048,10 +1048,10 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
 
   mtk_rectangle_intersect (&buffer_rect, clip, clip);
 
-  meta_rectangle_scale_double (clip,
-                               1.0 / stex->buffer_scale,
-                               MTK_ROUNDING_STRATEGY_GROW,
-                               clip);
+  mtk_rectangle_scale_double (clip,
+                              1.0 / stex->buffer_scale,
+                              MTK_ROUNDING_STRATEGY_GROW,
+                              clip);
 
   if (meta_monitor_transform_is_rotated (stex->transform))
     {
diff --git a/src/core/boxes-private.h b/src/core/boxes-private.h
index 3bc36138f..d39a2f876 100644
--- a/src/core/boxes-private.h
+++ b/src/core/boxes-private.h
@@ -241,12 +241,6 @@ META_EXPORT_TEST
 gboolean meta_rectangle_is_adjacent_to (MtkRectangle *rect,
                                         MtkRectangle *other);
 
-META_EXPORT_TEST
-void meta_rectangle_scale_double (const MtkRectangle  *rect,
-                                  double               scale,
-                                  MtkRoundingStrategy  rounding_strategy,
-                                  MtkRectangle        *dest);
-
 META_EXPORT_TEST
 void meta_rectangle_transform (const MtkRectangle   *rect,
                                MetaMonitorTransform  transform,
diff --git a/src/core/boxes.c b/src/core/boxes.c
index 6b54318fe..90f6ae66c 100644
--- a/src/core/boxes.c
+++ b/src/core/boxes.c
@@ -1849,19 +1849,6 @@ meta_rectangle_is_adjacent_to (MtkRectangle *rect,
     return FALSE;
 }
 
-void
-meta_rectangle_scale_double (const MtkRectangle  *rect,
-                             double               scale,
-                             MtkRoundingStrategy  rounding_strategy,
-                             MtkRectangle        *dest)
-{
-  graphene_rect_t tmp = GRAPHENE_RECT_INIT (rect->x, rect->y,
-                                            rect->width, rect->height);
-
-  graphene_rect_scale (&tmp, scale, scale, &tmp);
-  mtk_rectangle_from_graphene_rect (&tmp, rounding_strategy, dest);
-}
-
 /**
  * meta_rectangle_transform:
  * @rect: the #MtkRectangle to be transformed